package com.ruoyi.shop.mapper;

import com.ruoyi.shop.domain.User;

/**
 * 客服信息Mapper接口
 * 
 * @author ruoyi
 * @date 2023-08-06
 */
public interface UserMapper 
{
    /**
     * 查询客服信息
     * 
     * @param userName 客服信息主键
     * @return 客服信息
     */
    public User selectUserByUserName(String userName);

}
